package jetpack.com.pzl.architecture.data_binding;

public class BeanKnowledge {

    public static final String text = "运算符\n\n" +
            "空合并运算符 ?? 会取第一个不为 null 的值作为返回值\n" +
            "android:text=\"@{user.name ?? user.password}\" \n\n" +
            "属性控制\n" +
            " android:visibility=\"@{user.male  ? View.VISIBLE : View.GONE}\" \n\n" +
            "";


}
